Crossover query

[Missionman]

Hi guys

Right, bought myself some Wharfedale Diamond 10.3 Tall stand speakers..
Found them at a good price, so i thought id buy them..
They sound fantastic, especially compared to my Mission 753's, which i have now stopped using due to my son puttin a mark on the wood, and dont want them damaged due to rarity..

So, anyway, back to the subject..

although they sound fantastic, i would like to install some 1.6khz crossovers inside the speakers..
The thing is, my speakers are 100w 6 ohm.. and the only crossovers i can find are 100w 8ohm...

Is this ok to fit??

As i cannot find any 6ohm crossovers...

cheers

 

[Dennis Murphy]

HI. What would you hope to gain by adding crossovers? Were you going to disconnect what's already in there? I'm sure Wharfedale optimized their Xover for the drivers and cabinet being used. No one-size-fits-all off-the-shelf crossover is going to work very well irrespective of the nominal impedance rating. I must be missing something here. Perhaps you could supply some more detail on what your goals are?

 

[Missionman]

Well, when you have a speaker that has no Crossover, the bass, mid and trebble are just fed by the amp output..
By adding a crossover, i wish to seperate a clear drive of each to the correct speaker within the enclosure..

As you know, thats what crossovers are for, for clarity, and sound seperation to each indipendant speaker..
And this is what i am wanting to do..
Because without a crossover, the woofer driver recieves part trebble too, and i dont want that..
I want the tweeter to handle the trebble, and the woofer driver to handle the mid and low...

cheers

 

[Nestor]

10.3 speaker specs say there are two drivers with a 1.8Khz crossover installed. Am I missing something?

 

[Missionman]

Oh yes, i see what you mean. just read that on the specs too...
I am anoyed now, mine most certainly dont have any crossover installed at all...
I will be returning those for new ones asap..

 

[fmw]

Were they new or used? If used, perhaps someone used them with an active crossover. That would require at least disconnecting the passive crossover in the speaker cabinets. It wouldn't require physical removal, however. If new, did you open the cabinets to discover the missing crossover?

 

[Dennis Murphy]

Well, when you have a speaker that has no Crossover, the bass, mid and trebble are just fed by the amp output..
By adding a crossover, i wish to seperate a clear drive of each to the correct speaker within the enclosure..

As you know, thats what crossovers are for, for clarity, and sound seperation to each indipendant speaker..
And this is what i am wanting to do..
Because without a crossover, the woofer driver recieves part trebble too, and i dont want that..
I want the tweeter to handle the trebble, and the woofer driver to handle the mid and low...

cheers

Hmmm Crossovers aren't just for clarity--they also prevent the tweeter from burning up. I don't see any way these puppies could sound "fantastic" without a crossover. The tweeter would be producing prodigious quantities of harmonic distortion at the low end, and the woofer break up would be adding to the pain. Plus, the tweeter voice coil would burn up if you played them loudly for any period of time. Areyou sure there's no crossover in these things?

 

[Dennis Murphy]

Also--there may not be any low-pass filter on the woofer--it may have been designed to roll off naturally. And there many only be a single capacitor on the tweeter circuit, in which case it may have been installed in line with the wire going directly to the tweeter. So perhaps there's no separate crossover board. But if you bought them new, and they sound acceptable as is, then there is a crossover component(s) somewhere.

 

[Swerd]

although they sound fantastic, i would like to install some 1.6khz crossovers inside the speakers..

Oh yes, i see what you mean. just read that on the specs too...
I am anoyed now, mine most certainly dont have any crossover installed at all...
I will be returning those for new ones asap..

Missionman

By any chance, do your speakers have two pairs of terminals on the back of your speakers, like this?

If so, is this why you think your speaker have no crossovers? You may have noticed that if you remove the strips that bridge the 2 red terminals, and the 2 black terminals, you get sound only from the woofer or tweeter.

This does not mean that your speakers lack a crossover. There is still a low-pass filter for the woofer, and a high-pass filter for the tweeter, but they have separate terminals. There may also be more than those simple features built in to those boards.